Washington earthquakes

M1.9 earthquake 36 km NNE of Amboy, Washington

A magnitude 1.9 earthquake struck 36 km NNE of Amboy, Washington on Fri, Sep 17, 1982, 7:55 PM PDT (02:55 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.0 21 km S of Morton, Washington. This one was a foreshock.

Amboy forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1982-09-18 02:55:50 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
46.195° N, 122.203° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.6 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
120°
Stations used
7

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.823 km S of Morton, Washington · 16073 days ago · 9 km deep · 17 km away
  2. 1.83 km S of Parkdale, Oregon · 16071 days ago · -1 km deep · 92 km away
  3. 1.517 km NW of Packwood, Washington · 16070 days ago · -1 km deep · 66 km away
  4. 1.725 km S of Morton, Washington · 16055 days ago · 8 km deep · 15 km away
  5. 1.54 km SE of Parkdale, Oregon · 16052 days ago · 4 km deep · 93 km away
  6. 2.021 km S of Morton, Washington · 16052 days ago · 10 km deep · 19 km away
  7. 1.922 km S of Morton, Washington · 16043 days ago · 6 km deep · 19 km away
  8. 1.538 km S of Morton, Washington · 16036 days ago · -2 km deep · 3 km away
  9. 1.539 km NNE of Amboy, Washington · 16035 days ago · -2 km deep · 2 km away
  10. 1.538 km NNE of Amboy, Washington · 16031 days ago · -1 km deep · 2 km away
  11. 1.92 km NE of Brush Prairie, Washington · 16030 days ago · 10 km deep · 55 km away
  12. 1.538 km NNE of Amboy, Washington · 16030 days ago · -2 km deep · 2 km away
  13. 1.638 km NNE of Amboy, Washington · 16030 days ago · -2 km deep · 2 km away
  14. 1.620 km NNE of Ashford, Washington · 16029 days ago · 3 km deep · 83 km away
  15. 1.838 km NNE of Amboy, Washington · 16026 days ago · -2 km deep · 2 km away
  16. 1.58 km ENE of Onalaska, Washington · 16025 days ago · 26 km deep · 57 km away
  17. 1.824 km S of Morton, Washington · 16020 days ago · 10 km deep · 17 km away
  18. 1.538 km NNE of Amboy, Washington · 16020 days ago · -2 km deep · 1 km away
  19. 1.813 km NNE of Ashford, Washington · 16019 days ago · 8 km deep · 77 km away
  20. 1.638 km NNE of Amboy, Washington · 16017 days ago · -2 km deep · 1 km away
  21. 1.931 km S of Morton, Washington · 16017 days ago · 9 km deep · 9 km away

Before

  1. 1.83 km NNE of Packwood, Washington · 16077 days ago · 4 km deep · 65 km away
  2. 1.612 km NE of Ashford, Washington · 16080 days ago · 9 km deep · 76 km away
  3. 2.222 km ESE of Packwood, Washington · 16088 days ago · 0 km deep · 74 km away
  4. 1.622 km S of Morton, Washington · 16090 days ago · 4 km deep · 18 km away
  5. 1.613 km NE of Ashford, Washington · 16090 days ago · 9 km deep · 76 km away
  6. 1.837 km SSE of Morton, Washington · 16091 days ago · 9 km deep · 8 km away
  7. 1.723 km ESE of Packwood, Washington · 16095 days ago · 2 km deep · 73 km away
  8. 1.916 km NNE of Ashford, Washington · 16096 days ago · 8 km deep · 80 km away
  9. 2.423 km ESE of Packwood, Washington · 16096 days ago · 0 km deep · 73 km away
  10. 1.525 km S of Morton, Washington · 16100 days ago · 8 km deep · 15 km away
  11. 2.322 km S of Morton, Washington · 16105 days ago · 8 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10144943. Read Wed, Sep 23, 2026, 4:24 AM UTC.